Thermo-adhesive textile fabric and process



Patented Apr. 21, 1936 Peter Arlen te, Saylesvllle, B. 1., assignor to Sayles Plants, Inc dSaylesville, 1t. 1.,

v a corporation of Rhodelslan No Drawlng. sAppllcation November 18,1935,

erlal No.

12 Claims.

The present inventionrel'at s to a thermo-adhesive textile fabric adapted forum as a-lining. An object of the invention is to produce a thermo-plastic and adhesive textile fabric'which will adhere with great permanence to ordinary .textile fabrics upon the application of heats and pressures characteristic of normal ironing.

The fabric of this invention combines for the first time in the art, so far as I am aware, the

a lining for collars, cuifs, shirt bosoms and light weight, light colored textile fabrics in general:-

1. The fabric is entirely non-adhesive at room temperatures or thereabouts.

rics at a temperature safely below thelscor'ching point ofthe fabrics without the use of a solvent. 3. The. adhesive bond prodilgzed does not break during repeated normal launderings.-

4. Ifthe adhesive bond is ruptured it can be restored by normal ironing; I

5. The fabric. remains colorless during all operations of manufacture and'use.

6. The thermo a'dhesive material does not penetrate through to the exterior surface of fablies to which it is bonded.

This application isa continuation in part of my (co-pending application, Ser. No. 756,311, filed December 6, 1934.

In making my fabric, I prepare a thernio-adhesive material by dissolving in one orrmore-organic, solvents, a solid alkyl-ortho-benzoyl-benzoate having not more than two carbon atoms "in the alkyl radical (namely, methyl-- or ethyl ortho-benzoyl-benzoate) and a suitable cellulose derivative which is insoluble in water but soluble in the solvent or solvents for the alkyl-orthobenzoykbenzcate.

such, an adhesive:-- V

iExampZe #1 r v Per cent Cellulose acetate "A. 18.6

Acetone 33.2

Ethyl acetate 33.2

v Ethyl-ortho-benzoy1 benzoate 20.0

following characteristics, which are desirable in 2. It becomes adhesive to ordinary textile fab-f preferably at a temperature of about 110F.

The following'may be given as examples of I Exam le #3 g Per cent Cellulose nitrate 13.5 Acetone 16.5 Toluene 16.5

Ethyl acetate 33.0 Ethyl-ortho-benzoyl-benzoate 20.5

Example #4 u Per cent Ethyl cellulose 13.7 .Acetone 33.7 Ethyl acetate 33.6 'Ethyl-0rtho-benzoyl-benzoate 14.0 Pigment i 5.0

' Whi le excellent resultsmay be obtained with these specific compositions, it is to be understood that the percentages given may be varied and that other constituents may be substituted so long as they fall within the groups herein set forth.

Both methyl and ethyl-ortho-benzoyl-benzoate may be used in the same composition, and more .than one cellulose derivative of the class set forth may be used if desired.

Several coats of my thermo-adhesive mixture may be applied, for example by means of a coatingamachine', to either one or both sides of a textile fabric; The coated fabricis then dried,

This removes the solvent and leaves the fabric coated with a thermo-a dhesive composition. In the case of the composition of Example 1 above. -for instance, the dried coating on the fabric would comprise approximately 40% cellulose acetate and" approximately 60% ethyl-orthobenzoyl-benzoate. v Y

The dried fabric has all the above-enumerated desirable characteristics.

This coated fabric will adhereftenaciously to other fabrics when they are pieced together and ironed with a heatediron at temperatures well below the scorching point of the fabrics.

A very advantageous result may be obtained by pretreatlng the fabric, before it is coated with the thermo-adhesiv'e material, with a dressing or sizing of a material, preferably insoluble in water, such as casein, regenerated cellulose, or the like, and if desired, with a filler also, such as talc,

claypr the like. i

For example, a suitable fabric,after having been boiled and bleached in the usual mannenmay .be treated (for'example by immersion) with a viscose solution containing 4% cellulose. The cellulose-maybe regenerated with a sulphuric acid bath and the fabric washed free from acid-and dried. The fabric may then be coated with my thermo-adhesive composition.

While my'novel thermo-adhesive textile fabric is adapted to general use for the production of duplex or mul-ti-ply fabrics, it is particularly useful as a lining in the production of composite fabrics to be made into collars, cuffs, shirt bosoms,

- etc., which it is desired shall be especially resistant to wilting, mussing and wrinkling. During normal launderings the adhesion between the lining and adjacent textile fabric remains intact. The lining makes such laundered article sumciently still so that the use of starch is not necessary A- particular advantage of my fabric when used as a lining is that the bond between the lining and the adjacent fabric not only withstands repeated normal'lau'nderings, but if because of abnormal conditions the bond becomes loose or broken,

luloseiderivative which is insoluble in water but soluble in a solvent for the alkyl-ortho-benzoyl- Y benzoate.

4. A process of preparing a fabric lining for a textile material composed of two or more sheets, which process comprises dissolving cellulose acetate and an alkyl-ortho-benzoyl-benzoate having not more than two carbon atoms'in the alkyl radical in one or more volatile organic solvents,

, coating said fabric with said solution and drying that is necessary to restore the bond .and re-,

adhere the lining to the fabric is to iron again in the usual way; This property of the lining clearly distinguishes it from those linings which are made with preparations containing synthetic resins. r The adhesive bonds of such latter linings I have foundto be objectionable. Either they are incapable of\ withstanding repeated normal launderin gs without breaking or, if the bonds are capable of withstanding such launderings, they cannot be restored by merely ironing again if the bonds are once broken by abnormal conditions.

Another advantage of my fabric Whenused as a lining is that to render it properly adhesive only ordinary ironing is required and no treatment with organic solvent is necessary. The use of such a solvent is objectionable in the manufacture of'collars, cuii's, shirts, etc. Y

I claim:

1. A thermo-adhesive textile fabric lining comprising a fabric coated with a composition comfabrics, of providing an adhesive bond between itself and such other fabrics,.which bond is capable ofwithstanding repeated'launderings and if rupturedis capable of 'restoration by the application of heat and pressure, and of withstanding discoloration during normal manufacture and use.

adhesive textile fabric lining comprising af abric coated with a thermo-adheslve. composition comprising an esterof the allqrl-o'rtho-benzoyl-benzoate class h'avingnot more than two carbon atoms in the alkyl radical and a cellulose derivative' which isinsoluble in water and soluble ma solvent for the said alkyl-ortho-benzoyl-benzoate.

3. A thermo-adhesive textilefabric comprising a fabric coated with a composition comprising an alkyl-ortho benzoyl-benzoate selected from the group consisting-of methyl-ortho-benzoyl-benzo ate and CthYI-OIthO-bCDZOYl-rbCHZWtE, and a cel- 2. As a new article of manufacture, a thermothe coated fabric to'remove the solvent, whereby thermo-adhesive properties are imparted to the fabric.

5. A thermo-adhesivetextile fabric adapted for I use as a lining comprising a fabric coated with a'composition comprising cellulose acetate and ethyl-ortho-benzoyl '-.-benzoate, said fabric having the. properties of adhering tenaciously to other textile fabrics'after heating under pressure at a temperature belbw'the scorching point of the fabrics, of providing an adhesive .bond between itself and such other fabrics, which bond is'capable of withstandingrepeated launderings and if ruptured is capable of restoration by the application of heat and pressure, and of withstand lug-discoloration during normal manufacture and 6. A thermo-adhesive textile fabric comprising a fabric coated with a thermo-adhesive composi tion comprising cellulose acetate and ethyl-orthobenzoyl-benzoate.

7. A thermo-adhesive textile fabric lining comprising a fabric coated with a theirniflplastic composition comprising approximately40% of cellulose acetate and approximately 60% of ethylortho-benzoylwbenzoate.

8. i A thermo-adhesive textile fabric comprising a fabric coated with a composition comprising methyl-ortho-benzoyl-benzoate and a cellulose derivative which is insoluble in water but soluble in a solventfor said methyl-ortho-benzoyl-benzoate.

9. A thermo-adhesive textile fabric comprising a fabric coated with athermo-adhesive composition comprising cellulose acetate and methylortho-benzoyl-benzoate. a I

10. A lining consisting of a textile fabric filled with a-water-insoluble sizing, with or without a mineral filler, and coated with a thermo-adhesive material comprising an alkyl-ortho-benzoyl-benzoate having not more than two carbon atoms in the alkyl radical, and a cellulose derivative insoluble in water but soluble in a solvent for said alkyl-ortho-benzoyl-benzoate. 11. A lining material consisting of a textile fabric sized with regenerated cellulose and coated with a thermo-adhesive material comprising an al kyl-ortho-benzoyl-benzoate selected from the group consisting of methyl-prtho-benzoylbenzoate and ethyl-ortho-benzoyl-benzoate, and a cellulose derivative which is insoluble in water but soluble in a solvent for saidalkyl-ortho-benzoyl-benzoate.

' 12. A lining consisting of a textile fabric filled with a water-insoluble'sizing, with or without a mineral'filler, and coated withia thermo-adhesive material comprising cellulose acetate and ethyl ortho-benzoyl-benzoate.

' PETER J 

